Fermi LAT Detection of a New Gamma-ray Source PKS 0131-522
ATel #6223; J. Becerra (NASA/GSFC/UMCP/CRESST), R. Ojha (NASA/GSFC/UMBC/CRESST), Marco Ajello (Clemson University), D. Kocevski (NASA/GSFC), R. Buehler (DESY/Zeuthen) on behalf of the Fermi Large Area Telescope Collaboration
on 10 Jun 2014; 16:25 UT
Credential Certification: Josefa Becerra González (jbecerragonzalez@gmail.com)
Subjects: Gamma Ray, >GeV, AGN, Blazar
The Large Area Telescope (LAT), one of the two instruments on the Fermi Gamma-ray Space Telescope, has observed strong gamma-ray emission from a source positionally consistent with the extragalactic radio source PKS 0131-522 with coordinates 01h33m05.7625s -52d00m03.946s, (J2000) and a redshift of 0.02 (Johnston et al. 1995, AJ, 110, 880).
Preliminary analysis indicates that on June 5, 6, and 7, 2014, the daily averaged flux (E>100MeV) was (0.6+/-0.2), (0.4+/-0.1) and,
(0.4+/-0.1) x 10^-6 photons cm^-2 s^-1 respectively (errors are statistical only). This source is not in any published LAT catalog and was not detected by EGRET. The source had a photon index between (2.1+/-0.2) and (2.4+/-0.3). This source was also detected during the interval through 31 March to 07 April 2014 by Fermi All-sky Variability Analysis (FAVA) at a flux (E>100MeV) of (1.1+/-0.4) x 10^-7 photons cm^-2 s^-1.
Because Fermi operates in an all-sky scanning mode, regular gamma-ray monitoring of this source will continue. We encourage further multifrequency observations of this source. For this source the Fermi LAT contact person is Josefa Becerra (josefa.becerra@nasa.gov).
The Fermi LAT is a pair conversion telescope designed to cover the energy band from 20 MeV to greater than 300 GeV. It is the product of an international collaboration between NASA and DOE in the U.S. and many scientific institutions across France, Italy, Japan and Sweden.
